User is Nico.

Chat inspired by the young gods au created by Velinxi. Anyone who hasn't heard about it can buy her book on her page or read the au on an available pdf.

(In this au, Percy accepts the gift from the gods and becomes immortal. Jason and Nico are godlings, Jason being a son of Zeus and Hera, the heir of the Olympus and Nico being a son of Hades and Persephone, the troublesome heir of the Underworld)